A documentary crew get on the bad side of the cannibals they’re filming in this gruesome exploitation classic. A researcher recovers footage a crew of filmmakers shot before they disappeared. But when he watches it, he sees horror far worse than he imagined. Made in 1979, but not released here until 1985, this controversial film quickly became a grindhouse smash. But it’s biggest impact on horror is surely its innovative found-footage conceit, which led to the emergence of an entire subgenre in recent years. Vegetarians beware: the animal violence is very real.